Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6534300 | Solar Energy Materials and Solar Cells | 2018 | 6 Pages |
Abstract
A new magenta-to-transmissive electrochromic polymer, poly(3,4-bis(3-bromopropoxy)thiophene) (PBBrPOT) was synthesized by electrochemical polymerization and its electrochromic properties were characterized in detail. Compared with the representative “large-volume alkyl substituents” strategy, herein we use bromines as the end-capping groups of two propoxyl substituents on the 3- and 4- position of the thiophene ring to introduce more steric repulsion within the polymer chains, and therefore obtain a magenta neutral state of the polymer. The PBBrPOT film shows a set of reasonable electrochromic features, including low driving potentials (â0.1Â V and 0.9Â V), appropriate transmittance change (38% at 556Â nm), but a relatively longer response time in bleaching process (t95 = 6.5Â s).
Keywords
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Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Xiaoming Chen, Qishu Qu,